<template>
  <div style="width: 100%; height: 100vh; overflow: hidden" class="animate__animated animate__bounce" :style="bg"> <!--  :style="bg" 加背景图片-->
    <div style="width: 400px; margin: 100px auto">
      <div style="font-size: 30px; text-align: center; padding: 30px 0">欢迎登录</div>
      <el-form ref="form" :model="form" size="normal" :rules="rules">
        <el-form-item prop="username">
          <el-input prefix-icon="el-icon-user-solid" v-model="form.username" placeholder="请输入账号"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input prefix-icon="el-icon-lock" v-model="form.password" show-password placeholder="请输入密码"></el-input>
        </el-form-item>
        <el-form-item>
         <div style="display: flex">
           <el-input prefix-icon="el-icon-key" v-model="form.validCode" style="width: 50%;" placeholder="请输入验证码"></el-input>
           <ValidCode @input="createValidCode" />
         </div>
        </el-form-item>
        <!-- <el-form-item>
          <el-radio v-model="form.role" :label="1">管理员</el-radio>
          <el-radio v-model="form.role" :label="2">普通用户</el-radio>
        </el-form-item> -->
        <el-form-item>
          <el-button style="width: 100%" type="primary" @click="login">登 录</el-button>
        </el-form-item>
        <!-- <el-form-item><el-button type="text" @click="$router.push('/register')">前往注册 >> </el-button></el-form-item> -->
      </el-form>
    </div>
  </div>
</template>

<script>
import request from '@/utils/request'
import ValidCode from '../Layout/ValidCode.vue'

export default {
  name: 'Login',
  components: {
    ValidCode
  },
  data () {
    return {
      form: { role: 1 },
      rules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' }
        ]
      },
      validCode: '',
      // 加背景图片
      bg: {
        backgroundImage: 'url(' + require('@/assets/image/limumu.jpg') + ')',
        backgroundRepeat: 'no-repeat',
        backgroundSize: '100% 100%'
      }
    }
  },
  created () {
    sessionStorage.removeItem('user')
  },
  methods: {
    // 接收验证码组件提交的 4位验证码
    createValidCode (data) {
      this.validCode = data
    },
    login () {
      this.$refs.form.validate((valid) => {
        if (valid) {
          if (!this.form.validCode) {
            this.$message.error('请填写验证码')
            return
          }
          if (this.form.validCode.toLowerCase() !== this.validCode.toLowerCase()) {
            this.$message.error('验证码错误')
            return
          }
          request.post('/user/login', this.form).then(res => {
            if (res.code === '0') {
              this.$message({
                type: 'success',
                message: '登录成功'
              })
              sessionStorage.setItem('user', JSON.stringify(res.data)) // 缓存用户信息
              this.$router.push('/') // 登录成功之后进行页面的跳转，跳转到主页
            } else {
              this.$message({
                type: 'error',
                message: res.msg
              })
            }
          })
        }
      })
    }
  }
}
</script>

<style scoped>

</style>
